Description
Safety Jogger – Caldera S7S – Safety Boot
Safety Jogger Caldera S7S is a waterproof rigger boot with a rubber outsole that the sheet calls heat-resistant, metal-free and designed for harsh environments. The upper is crazy horse leather over a lining of recycled mesh and a membrane, the toecap is nano carbon and the midsole is an anti-puncture textile, so no metal parts are involved.
It is category S7S with SR, SC, LG, FO, HI, HRO, CI and ESD, to EN ISO 20345:2022+A1:2024 and ASTM F2413:2024. The heavy-class boot weighs 0.860 kg for the tested sample and covers EU 35 to 50. Industries on the sheet are chemical, construction, industry, mining and oil and gas, and the environments are cold, extremely slippery, muddy, uneven, warm surfaces and wet.
Key features
- Waterproof (WR) construction with membrane lining
- Heat resistant outsole (HRO), resists temperatures up to 300 C per the sheet
- Nano carbon toecap, metal free, no thermal or electrical conductivity
- Anti-puncture textile midsole
- ESD: volume resistance between 100 kOhm and 100 MOhm
- Ladder grip (LG), scuff cap (SC), heat insulation (HI), cold insulation (CI)
- Oil and fuel resistant (FO), slip resistant (SR) rubber NBR/BASF PU outsole
- Pull-on rigger style with SJ recycled foam footbed (96% recycled)
Technical specifications
| Parameter | Specification |
|---|---|
| Model | Caldera S7S (ref 013882) |
| Category | S7S / SR, SC, LG, FO, HI, HRO, CI, ESD |
| Standards printed | EN ISO 20345:2022+A1:2024; ASTM F2413:2024 |
| Upper | Crazy horse leather |
| Lining | Recycled mesh (100% recycled), membrane |
| Footbed | SJ recycled foam footbed (96% recycled) |
| Midsole | Anti-puncture textile |
| Outsole | Rubber (NBR), BASF PU |
| Toecap | Nano carbon |
| Weight (sample) | 0.860 kg |
| Size range | EU 35-50 / UK 3.0-14.0 / US 3.0-15.0 |
| Weight class on sheet | Heavy |
| Industries | Chemical, construction, industry, mining, oil and gas |
| Environments | Cold, extremely slippery, muddy, uneven, warm surfaces, wet |









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